COMCAST CORPORATION

Comcast Cable Communications, LLC
Data as of 2026-09-06
GLEIF verified
Complete entity footprint
7 linked clusters · 4,592 netblocks · 79,437,949 IPv4 addresses · 3,192 IPv6 prefixes
This organisation's clusters combined by evidence — shared GLEIF corporate family and shared operating domain comcast.net — not name similarity, so genuinely different organisations that share a name are excluded.
View the full entity page →
LEI
51M0QTTNCGUN7KFCFZ59
Registered name
COMCAST CORPORATION
Jurisdiction
US-PA
Ultimate parent
No parent on file in GLEIF
This organisation
Netblocks4,403 · 70,800,176 IPv4 addresses
IPv6 3,145 prefixes (largest 2601::/20)
Registered in United States (1,244) · Canada (13) · Japan (5) · MD (4) · Ukraine (4) · PK (2)
Also registered under this name 4,482 netblocks across 16 separate records
Record ID236102111
RegistryBGP
Owner jurisdictionUS-PA
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 51M0QTTNCGUN7KFCFZ59
Shared handles clustered on 100 shared RIR contact/maintainer handles
Registry names 15 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (4,403)

showing 500 of 4,403 — see all — ⬇ export CSV (free export limited to 500 rows — subscribe for the full export)
CIDR Org name Registry Status Confidence
5.182.187.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
5.182.192.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
5.182.198.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
23.249.160.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
23.249.170.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
24.0.0.0/16 Comcast Cable Communications, Inc. ARIN ASSIGNMENT ● high
24.16.0.0/14 Comcast Cable Communications ARIN ASSIGNMENT ● high
24.30.0.0/18 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
24.34.0.0/17 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
24.60.0.0/15 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
24.75.216.0/22 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
24.91.0.0/17 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
24.98.0.0/16 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
24.104.46.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
24.104.58.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
24.104.75.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
24.104.124.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
24.104.143.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
24.104.146.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
24.104.156.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
24.118.0.0/17 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
24.124.128.0/17 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
24.125.0.0/17 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
24.126.0.0/17 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
24.128.0.0/17 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
24.129.0.0/18 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
24.130.0.0/16 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
24.147.0.0/17 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
24.153.64.0/19 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
24.218.0.0/17 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
24.245.0.0/19 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
31.132.52.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
31.132.53.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
31.132.54.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
36.255.213.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
36.255.214.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
45.58.210.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
45.58.244.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
45.147.159.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
45.248.52.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
46.34.39.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
46.202.218.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.147.168.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.148.139.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.148.165.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.150.146.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.169.100.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.169.236.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.169.239.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.170.42.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.170.112.0/20 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.171.218.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.175.118.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.175.187.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.200.25.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.200.97.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.200.159.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.200.193.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.201.4.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.201.18.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.201.39.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.201.41.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.201.53.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.201.99.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.201.112.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.201.230.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.4.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.12.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.31.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.32.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.69.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.125.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.142.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.167.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.174.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.176.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.221.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.226.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.227.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.202.235.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.203.190.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.203.219.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.203.226.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.203.250.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.204.37.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.204.71.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.204.89.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.204.101.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.204.160.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.204.170.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.204.202.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.204.214.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.205.29.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.205.31.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.205.34.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.205.217.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.205.228.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.205.228.0/22 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.205.230.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.205.246.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.206.77.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.206.85.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.206.116.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.206.127.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.206.154.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.206.155.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.206.163.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.207.65.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.207.68.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.207.92.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.207.166.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.216.68.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.216.93.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.216.94.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.216.135.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.216.138.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.216.148.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.216.151.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.216.229.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.216.237.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.216.238.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.217.1.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.217.18.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.217.32.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.217.34.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.217.157.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.217.184.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.217.207.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.217.249.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.218.47.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.218.67.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.218.90.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.218.97.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.219.12.0/22 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.219.115.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.219.135.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.220.33.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.220.66.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.220.96.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.220.170.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.220.194.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.220.224.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.220.237.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.220.238.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.221.47.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.221.49.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.221.158.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.221.219.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.222.24.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.222.54.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.222.96.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.222.100.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.222.103.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.222.119.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.222.146.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.222.157.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.222.172.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.223.155.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.224.11.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.224.22.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.224.25.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.224.52.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.224.86.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.224.249.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.225.8.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.225.36.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.225.65.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.225.69.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.225.139.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.225.186.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.225.239.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.225.242.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.225.244.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.225.246.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.225.248.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.225.249.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.226.0.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.226.56.0/22 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.226.70.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.226.76.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.226.126.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.227.73.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.227.97.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.227.104.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.227.142.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.227.176.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.227.206.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.227.241.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.227.252.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.228.10.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.228.62.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.228.113.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.228.116.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.228.137.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.228.177.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.228.194.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.229.7.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.229.40.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.229.72.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.229.113.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.229.114.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.229.207.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.230.7.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.230.87.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.230.221.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.231.153.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.231.217.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.232.15.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.232.18.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.232.31.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.232.50.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.232.54.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.232.103.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.232.105.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.232.206.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.233.62.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.233.80.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.233.114.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.233.138.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.233.144.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.233.223.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.234.8.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.234.46.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.234.108.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.234.189.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.235.34.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.235.54.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.235.55.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.235.67.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.235.181.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.235.195.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.235.196.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.236.26.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.236.108.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.236.155.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.236.194.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.237.66.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.237.69.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.237.76.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.237.82.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.237.93.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.237.122.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.237.123.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.237.182.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.237.198.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.237.224.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.237.252.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.238.57.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.238.58.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.238.166.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.238.235.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.238.249.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.238.250.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.239.133.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
50.239.145.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
63.246.130.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
63.246.131.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
63.246.132.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
63.246.133.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
63.246.137.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
63.246.151.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
63.246.158.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
64.50.168.0/21 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
64.52.28.0/22 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
64.78.82.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
64.84.96.0/21 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
64.130.16.0/20 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
64.145.72.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
64.189.25.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
64.189.39.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
64.189.50.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
65.34.128.0/18 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
65.97.0.0/19 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
66.30.0.0/16 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
66.41.0.0/17 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
66.56.0.0/19 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
66.170.177.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
66.170.179.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
66.176.0.0/16 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
66.229.0.0/17 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
67.160.0.0/17 Comcast Cable Communications, Inc. ARIN ASSIGNMENT ● high
68.32.0.0/19 Comcast Cable Communications, Inc. ARIN ASSIGNMENT ● high
68.80.0.0/15 Comcast Cable Communications, Inc. ARIN ASSIGNMENT ● high
69.30.79.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
69.91.138.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
69.91.142.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
69.91.182.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
69.91.184.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
69.91.188.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
69.91.190.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
69.136.0.0/20 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
69.180.0.0/18 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
69.240.0.0/16 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
71.56.0.0/17 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
71.224.0.0/15 Comcast Cable Communications, Inc. ARIN ASSIGNMENT ● high
72.46.136.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
72.46.137.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
72.46.138.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
72.46.139.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
75.64.0.0/15 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
75.72.0.0/16 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
75.74.0.0/17 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
75.75.0.0/18 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
75.75.128.0/19 Comcast Cable Communications Holdings, Inc ARIN ASSIGNMENT ● high
76.16.0.0/16 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
76.78.162.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
76.96.0.0/17 Comcast Cable Communications, Inc. ARIN ASSIGNMENT ● high
76.128.0.0/16 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
77.111.118.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
78.31.204.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
92.113.86.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
92.113.89.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
92.113.114.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
92.249.31.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
94.154.170.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
94.154.182.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
96.96.0.0/14 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
96.112.0.0/14 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
96.124.0.0/21 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
98.32.0.0/18 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
98.192.0.0/17 Comcast Cable Communications, Inc. ARIN ASSIGNMENT ● high
103.105.166.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
103.115.187.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
103.130.178.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
103.210.12.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
104.243.208.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.0.22.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.0.50.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.0.136.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.0.159.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.0.168.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.0.213.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.1.27.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.1.33.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.1.38.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.1.53.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.1.86.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.1.136.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.1.148.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.1.222.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.1.252.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
107.4.0.0/17 Comcast Cable Communications, Inc. ARIN ASSIGNMENT ● high
129.134.166.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
129.134.167.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
135.132.18.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
135.132.19.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
135.132.21.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
135.132.22.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
139.181.8.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
139.181.28.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
141.104.0.0/16 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
141.193.53.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
147.78.205.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
147.78.206.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
147.137.0.0/16 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
147.191.0.0/16 Comcast Cable Communications ARIN DIRECT ALLOCATION ● high
157.240.130.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
157.240.133.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
157.240.135.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
157.240.138.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
157.240.145.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
157.240.146.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
157.240.147.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
157.240.148.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
158.62.212.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
158.62.214.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
158.62.215.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
159.215.64.0/22 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
162.148.0.0/22 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
162.150.41.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
162.218.90.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
164.90.11.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
165.137.0.0/16 Comcast Cable Communications ARIN DIRECT ALLOCATION ● high
166.88.179.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
167.254.205.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
168.221.0.0/16 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
168.221.171.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
168.221.176.0/20 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
170.62.252.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
170.62.255.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
172.244.0.0/24 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
173.242.174.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
174.48.0.0/16 Comcast Cable Communications, Inc. ARIN ASSIGNMENT ● high
184.108.0.0/15 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
184.112.0.0/17 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
185.52.137.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
185.187.212.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
185.201.40.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
185.205.205.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
190.99.80.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.16.177.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.41.172.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.42.95.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.64.165.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.77.143.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.88.105.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.88.199.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.133.105.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.135.0.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.138.205.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.138.220.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.149.9.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.169.42.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.188.119.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.188.131.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
192.234.211.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
198.46.65.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
198.90.112.0/22 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
198.145.48.0/20 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
198.145.80.0/20 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
198.145.140.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
198.178.8.0/21 Comcast Cable Communications ARIN DIRECT ALLOCATION ● high
198.180.251.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
198.184.150.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
198.185.140.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
198.185.178.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
198.185.180.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
198.199.172.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
198.204.31.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
198.252.172.0/23 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
199.27.168.0/22 Comcast Cable Communications Management, LLC ARIN DIRECT ALLOCATION ● high
199.27.170.0/23 Comcast Cable Communications Management, LLC BGP ANNOUNCED ● high
199.33.164.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
199.33.165.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
199.33.166.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
199.79.96.0/22 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
199.120.255.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
199.182.100.0/22 Comcast Cable Communications, LLC/Freewheel ARIN ASSIGNMENT ● high
204.89.234.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
204.124.100.0/22 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
204.130.132.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
204.194.47.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
204.228.81.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
205.172.20.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
205.172.21.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
205.172.22.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
205.172.23.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
205.173.152.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
205.173.153.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
205.173.154.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
205.173.155.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
205.173.156.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
205.173.157.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
205.173.158.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
205.173.159.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
205.223.19.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
206.201.156.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
206.201.158.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
208.64.164.0/22 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
208.66.72.0/21 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
208.79.64.0/22 Comcast Cable Communications Management, LLC ARIN DIRECT ALLOCATION ● high
208.79.64.0/23 Comcast Cable Communications Management, LLC BGP ANNOUNCED ● high
208.79.66.0/23 Comcast Cable Communications Management, LLC BGP ANNOUNCED ● high
208.110.207.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
209.12.49.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
209.23.225.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
209.80.158.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
212.60.15.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
216.85.81.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
216.122.112.0/22 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
217.197.169.0/24 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:558:4fec::/48 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
2001:558:5003::/48 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
2001:558:5008::/48 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
2001:558:5015::/48 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
2001:558:6010::/48 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
2001:558:6041::/48 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
2001:558:6043::/48 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
2001:558:6044::/48 Comcast Cable Communications, LLC ARIN ASSIGNMENT ● high
2001:559:11::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:21::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:29::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:30::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:34::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:3f::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:42::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:44::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:4b::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:57::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:59::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:61::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:63::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:70::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:71::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:80::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:81::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:83::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:84::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:89::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:8a::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:8d::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:8e::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:8f::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:95::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:a8::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:a9::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:ac::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:af::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:b6::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high
2001:559:b7::/48 Comcast Cable Communications, LLC BGP ANNOUNCED ● high

IPv6 ranges (3,145)

showing the 15 largest allocations
CIDR
2601::/20
2603:2000::/20
2603:3000::/24
2001:558::/29
2a0c:1900::/29
2620:10a:6000::/44
2620:115:e000::/44
2001:558:4000::/48
2001:558:4001::/48
2001:558:4002::/48
2001:558:4003::/48
2001:558:4010::/48
2001:558:4011::/48
2001:558:4012::/48
2001:558:4013::/48

Footprint over time

11 weekly snapshots · JSON
4,426 +368 netblocks since 2026-07-05
2026-07-05 peak 4,426 2026-09-06

Domains hosted in this network

what's this?
comcast.net xfinity.com comcast.com xumo.com xcal.tv xfinityhome.com deap.tv masergy.com nnracing.com theitguysfix.com surriel.com ident.com moocloud.party oldtownhome.com

Customer-delegated space

how is this classified?
Unclassified 4,368 (99.2%)
Customer access pools 58 (1.3%)

Corporate group (6 confirmed entities)

+46 additional unconfirmed candidates not shown — full list (JSON)

Network trust

what's this?
RPKI hygiene: B how networks compare →
92.1% of checked blocks have valid RPKI ROA coverage (1,842 of 2,000, sampled from 4,426)
Wholesale/transit re-announcements (89)

These blocks are registered to Comcast Cable Communications, LLC but cryptographically authorized across 17 different networks — typical for a large wholesale or transit carrier whose address space is substantially re-announced by downstream customers under their own ASNs, not individually noteworthy.

2a00:2381:10e0::/48 /48 authorized for AS2856 — British Telecommunications Limited
140.233.224.0/19 /19 authorized for AS3320 — Deutsche Telekom AG
48.44.72.0/21 /21 authorized for AS6079 — RCN
48.44.192.0/21 /21 authorized for AS6079 — RCN
45.150.168.0/22 /22 authorized for AS399130 — Ispwifi
45.151.196.0/22 /22 authorized for AS399130 — Ispwifi
48.44.28.0/22 /22 authorized for AS6079 — RCN
48.44.36.0/22 /22 authorized for AS6079 — RCN
48.44.64.0/22 /22 authorized for AS6079 — RCN
48.44.92.0/22 /22 authorized for AS6079 — RCN
48.44.96.0/22 /22 authorized for AS6079 — RCN
48.44.104.0/22 /22 authorized for AS6079 — RCN
48.44.200.0/22 /22 authorized for AS6079 — RCN
48.44.204.0/22 /22 authorized for AS6079 — RCN
48.44.208.0/22 /22 authorized for AS6079 — RCN
+74 more — see the REST API

NIC Handles

ABOVENET-MNT AS13367 AS14042 AS20214 AS20473 AS21508 AS22258 AS22909 AS3257-IPAM-MNT AS33287 AS33489 AS33490 +88 more